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Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode

Arsenic poisoning in the environment can cause severe effects on human health, hence detection is crucial. An electrochemical-based portable assessment of arsenic contamination is the ability to identify arsenite (As(III)). To achieve this, a low-cost electroanalytical assay for the detection of As(...

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Main Authors: Ismail, Suhainie, Yusof, Nor Azah, Abdullah, Jaafar, Abd Rahman, Siti Fatimah
Format: Article
Language:English
Published: Multidisciplinary Digital Publishing Institute 2020
Online Access:http://psasir.upm.edu.my/id/eprint/88770/1/SILICA.pdf
http://psasir.upm.edu.my/id/eprint/88770/
https://www.mdpi.com/1996-1944/13/14/3168
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spelling my.upm.eprints.887702021-10-06T15:34:32Z http://psasir.upm.edu.my/id/eprint/88770/ Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode Ismail, Suhainie Yusof, Nor Azah Abdullah, Jaafar Abd Rahman, Siti Fatimah Arsenic poisoning in the environment can cause severe effects on human health, hence detection is crucial. An electrochemical-based portable assessment of arsenic contamination is the ability to identify arsenite (As(III)). To achieve this, a low-cost electroanalytical assay for the detection of As(III) utilizing a silica nanoparticles (SiNPs)-modified screen-printed carbon electrode (SPCE) was developed. The morphological and elemental analysis of functionalized SiNPs and a SiNPs/SPCE-modified sensor was studied using field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), and Fourier transform infrared spectroscopy (FTIR). The electrochemical responses towards arsenic detection were measured using the cyclic voltammetry (CV) and linear sweep anodic stripping voltammetry (LSASV) techniques. Under optimized conditions, the anodic peak current was proportional to the As(III) concentration over a wide linear range of 5 to 30 µg/L, with a detection limit of 6.2 µg/L. The suggested approach was effectively valid for the testing of As(III) found within the real water samples with good reproducibility and stability. Multidisciplinary Digital Publishing Institute 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88770/1/SILICA.pdf Ismail, Suhainie and Yusof, Nor Azah and Abdullah, Jaafar and Abd Rahman, Siti Fatimah (2020) Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode. Materials, 13 (14). art. no. 3168. pp. 1-16. ISSN 1996-1944 https://www.mdpi.com/1996-1944/13/14/3168 10.3390/ma13143168
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Arsenic poisoning in the environment can cause severe effects on human health, hence detection is crucial. An electrochemical-based portable assessment of arsenic contamination is the ability to identify arsenite (As(III)). To achieve this, a low-cost electroanalytical assay for the detection of As(III) utilizing a silica nanoparticles (SiNPs)-modified screen-printed carbon electrode (SPCE) was developed. The morphological and elemental analysis of functionalized SiNPs and a SiNPs/SPCE-modified sensor was studied using field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), and Fourier transform infrared spectroscopy (FTIR). The electrochemical responses towards arsenic detection were measured using the cyclic voltammetry (CV) and linear sweep anodic stripping voltammetry (LSASV) techniques. Under optimized conditions, the anodic peak current was proportional to the As(III) concentration over a wide linear range of 5 to 30 µg/L, with a detection limit of 6.2 µg/L. The suggested approach was effectively valid for the testing of As(III) found within the real water samples with good reproducibility and stability.
format Article
author Ismail, Suhainie
Yusof, Nor Azah
Abdullah, Jaafar
Abd Rahman, Siti Fatimah
spellingShingle Ismail, Suhainie
Yusof, Nor Azah
Abdullah, Jaafar
Abd Rahman, Siti Fatimah
Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode
author_facet Ismail, Suhainie
Yusof, Nor Azah
Abdullah, Jaafar
Abd Rahman, Siti Fatimah
author_sort Ismail, Suhainie
title Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode
title_short Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode
title_full Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode
title_fullStr Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode
title_full_unstemmed Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode
title_sort electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode
publisher Multidisciplinary Digital Publishing Institute
publishDate 2020
url http://psasir.upm.edu.my/id/eprint/88770/1/SILICA.pdf
http://psasir.upm.edu.my/id/eprint/88770/
https://www.mdpi.com/1996-1944/13/14/3168
_version_ 1713201304117968896
score 13.211869

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